Mason City, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 24° -34° (1899) 62° (2002) 0.82" NA
February 12° 29° -35° (1899) 67° (1981) 0.92" NA
March 23° 41° -32° (1962) 84° (1986) 2.01" NA
April 35° 57° 5° (1982) 95° (1980) 3.55" NA
May 46° 69° 23° (1967) 104° (1934) 4.96" NA
June 57° 79° 31° (1928) 104° (1934) 5.36" NA
July 61° 82° 38° (1899) 107° (1936) 4.68" NA
August 58° 80° 30° (1915) 103° (1930) 4.2" NA
September 49° 73° 15° (1899) 103° (1922) 3.18" NA
October 37° 60° -4° (1925) 94° (1963) 2.38" NA
November 25° 43° -14° (1897) 79° (2006) 1.99" NA
December 11° 28° -26° (1983) 65° (1998) 1.19" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 61° 82° 44° (1899) 98° (1963) 0.16" NA
Jul 2 61° 82° 43° (1924) 101° (1911) 0.15" NA
Jul 3 61° 82° 45° (1917) 99° (1936) 0.16" NA
Jul 4 61° 82° 42° (1922) 104° (1911) 0.15" NA
Jul 5 61° 82° 44° (1967) 106° (1936) 0.16" NA
Jul 6 61° 82° 46° (1950) 103° (1936) 0.15" NA
Jul 7 61° 82° 42° (1896) 103° (1980) 0.17" NA
Jul 8 61° 82° 43° (1899) 99° (1936) 0.16" NA
Jul 9 61° 82° 46° (1899) 100° (1936) 0.15" NA
Jul 10 61° 82° 45° (1931) 104° (1936) 0.16" NA
Jul 11 61° 82° 43° (1945) 106° (1936) 0.15" NA
Jul 12 61° 82° 45° (1897) 105° (1936) 0.14" NA
Jul 13 61° 82° 44° (1926) 106° (1936) 0.15" NA
Jul 14 61° 82° 40° (1926) 107° (1936) 0.15" NA
Jul 15 61° 82° 43° (1930) 102° (1936) 0.15" NA
Jul 16 61° 82° 44° (1912) 103° (1936) 0.15" NA
Jul 17 61° 82° 42° (1911) 104° (1936) 0.15" NA
Jul 18 61° 82° 43° (1914) 100° (1940) 0.15" NA
Jul 19 61° 82° 46° (1912) 101° (1926) 0.15" NA
Jul 20 61° 82° 45° (1970) 104° (1926) 0.16" NA
Jul 21 61° 82° 45° (1944) 100° (1934) 0.15" NA
Jul 22 61° 82° 42° (1947) 99° (1934) 0.16" NA
Jul 23 61° 82° 45° (1925) 99° (1934) 0.15" NA
Jul 24 61° 82° 46° (1931) 104° (1940) 0.16" NA
Jul 25 61° 82° 50° (1911) 98° (1916) 0.15" NA
Jul 26 61° 82° 42° (1911) 101° (1936) 0.15" NA
Jul 27 61° 81° 46° (1971) 100° (1931) 0.14" NA
Jul 28 60° 81° 43° (1928) 101° (1955) 0.14" NA
Jul 29 60° 81° 43° (1925) 99° (1916) 0.14" NA
Jul 30 60° 81° 38° (1899) 100° (1919) 0.14" NA
Jul 31 60° 81° 41° (1971) 102° (1988) 0.13" NA
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